Top Quality English Made Triumph 650 Unit Twins Camplate Index "Strong" Plunger Spring. This Spring is refereed to in the Parts Book as the "Strong" Type! If your having problems with your Transmission "Popping" out of Gear, then installing this Spring may fix your issues! That's why Triumph came out with it! Measures 3 1/2" Long. As "Required" for Triumph 650 Unit Twins (Bonneville, T120R, Tiger, TR6, Trophy & TR6C) from 1968-1970. Also, this Spring will Technically fit all 650 Unit Twins from 1963-1970 and many Pre-Unit Twins up to 1962 if your need a "Stronger" Spring! Please refer to your parts catalog for proper fitment.
*****Always check your parts book to ensure that this part is correct for your application!*****
•Made in the UK
•O.E.M Part number is 57-1604 or T1604